Glossary

Author: Glossary

  • Oxyhemoglobin fraction

    That portion of hemoglobin present in a sample of blood that is reversibly bound to oxygen.  

  • Mass fraction

    The ratio of the mass of a constituent to the total mass of the system in which the constituent is contained. The ratio of the mass of a component to the mass of the system of which the component is a part.  

  • Fraction of inspired oxygen

    The concentration of oxygen in the inspired air, especially that supplied as supplemental oxygen by mask or catheter. Concentrations of oxygen greater than 50% are toxic if administered for more than a few days.  

  • Attributable fraction

    The percentage of instances of an illness that can be accounted for by a particular risk factor. For example, people exposed to asbestos have a certain risk of developing lung cancer, and if they also smoke tobacco, they are also at risk from that factor. These risks may be estimated from cohort studies.  

  • Fraction

    ln biological chemistry, the separable part of a substance such as blood or plasma.  

  • Fox-Fordyce disease

    A chronic pruritic papular eruption of areas of the skin that contain apocrine sweat glands. The intraepidermal ducts of the apocrine glands become obstructed and eventually rupture. The disease occurs mostly in persons 13 to 35 years of age and about 10 times more frequently in women than men. It does not occur before puberty.…

  • Foveola

    A minute pit or depression.  

  • Fovea centralis retinae

    In the eye, the pit in the middle of the macula lutea that contains only cones. In contemporary usage it is simply called the foveola.  

  • Fovea capitis

    The depression on the head of the femur for attachment of the ligamentum teres.  

  • Foulage

    Massage by kneading with pressure on the muscles.